cristal 22 1184mhz, regulator ic 7805, regulator ic 7812, lithium ion bty 3. 7v 2200mah, ic max 232 5v driver receiver smd, micro controller c 8051 f 5851q 48qfp smd programmed, ic tca 8418 rtwr pkg qfn 24 smd, cermet potention metre 50k ohm type 3386p, transistor bc 847b sot 23, lcd module white black light p n lm 2068e with 20 pin ffc cable